Breeders in Holland have worked hard to create reliable versions of broken, striped and flamed tulips which led to Tulip Mania in the seventeenth century. They are now virus-free and easy to grow, and they continue to develop in the vase to provide a spectacular show resembling the stunning Dutch flower paintings by the likes of Rachel Ruysch (1664-1750). Rembrandt tulips are the closest to the originals, but other tulip groups include bi-colour flowers. Names to look for, some of which are in the photo above, include 'Banja Luka', 'Helmar', 'Happy Generation', 'Flaming Flag', 'Carnival de Nice' and 'Grand Perfection'.